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UMI Performance Suspension Parts

Give your classic musclecar modern handling with UMI Performance! Built using the very latest design and machining technology, UMI Performance also installs and tests...

Give your classic musclecar modern handling with UMI Performance! Built using the very latest design and machining technology, UMI Performance also installs and tests every chassis and suspension component it makes to ensure that they perform as designed. UMI focuses on musclecars from the 1960s to today—A-bodies, F-bodies, B-bodies, G-bodies, and Mustangs. Choose from components like crossmembers, panhard bars, control arms, K-members, subframe connectors, and more. Many components fit like stock replacements, so they’re easy to install, but you’ll immediately notice tighter handling that’s easy to tune to your needs.

Showing In Stock Items. Show All 72 Items.

Individual Parts

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Results 1 - 25 of 47

UMI Performance Complete Front End Kit 403133-B

UMI Performance Complete Front End Kit 403133-B

A-Arms, Front Lower, Front Upper, Tubular, Black Powdercoated, Steel, Pair

Part Number: UPI-403133-B

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Today

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UMI Performance Rear Adjustable Upper Control Arms 4025-B

Control Arms, Tubular, Rear, Upper, Steel, Black, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4025-B

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Today

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UMI Performance Lowering Springs 4050R

Lowering Springs, Rear, Coil Type, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: UPI-4050R

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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UMI Performance Lowering Springs 4051R

Lowering Springs, Rear, Coil Type, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: UPI-4051R

4.95 out of 5 stars ( 22 )

Estimated Ship Date: Today

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UMI Performance Stock Height Springs 4049R

Stock Height Springs, Coil, Buick, Chevrolet, Oldsmobile, Pontiac, Rear, Pair

Part Number: UPI-4049R

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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UMI Performance Lowering Springs 4050F

Coil Springs, Front, Lowering, 1 in., Non-Progressive, 530 lbs. Linear Rate, 5160 Wire, Black Powdercoated, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4050F

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Today

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UMI Performance Lowering Springs 4051

Lowering Springs, Front and Rear, Coil Type, Black Powdercoated, Buick, Chevy, GMC, Olds, Pontiac, Set of 4

Part Number: UPI-4051

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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UMI Performance Front Adjustable Upper A-Arms 4056-1-B

Control Arms, Tubular, Steel, Black, Front Upper, Adjustable, Buick, Chevrolet, Oldsmobile, Pontiac, Pair

Part Number: UPI-4056-1-B

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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UMI Performance Rear Non-Adjustable Lower Control Arms 4015-B

Control Arms, Tubular, Rear, Lower, Steel, Black Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Kit

Part Number: UPI-4015-B

4.94 out of 5 stars ( 18 )

Estimated Ship Date: Today

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UMI Performance Bolt-In Viking Rear Coilover Kits 4057-225

Coilover Kit, Bolt-In Viking Rear Coilover Kit, Rear, Adjustable Valving, Twin-tube Shocks, Springs, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: UPI-4057-225

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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UMI Performance Rear Double Adjustable Lower Control Arms 4043-B

Control Arms, Double Adjustable, Rear Lower, Steel, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac

Part Number: UPI-4043-B

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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UMI Performance Lowering Springs 4051F

Lowering Springs, Front, Coil Type, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: UPI-4051F

4.31 out of 5 stars ( 13 )

Estimated Ship Date: Today

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UMI Performance Front Non-Adjustable Lower A-Arms 4031-B

Control Arms, Tubular, Steel, Black, Front Lower, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4031-B

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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UMI Performance Rear Non-Adjustable Lower Control Arms 4024-B

Control Arms, Rear Lower, Non-Adjustable, Boxed, Steel, Black, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: UPI-4024-B

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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UMI Performance Coil Spring Spacers 90064

Coil Spring Spacers, Rear Only, Steel, Zinc Coated, Buick, Chevy, Oldsmobile, Pontiac, Set of 6

Part Number: UPI-90064

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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UMI Performance Lowering Springs 4050

Lowering Springs, Front and Rear, 1 in. Lowering, Black Powdercoated, Buick, Chevy, Oldsmobile, Pontiac, Set

Part Number: UPI-4050

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Today

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UMI Performance Complete Front End Kit 403133-1-B

A-Arms, Front Lower, Front Upper, Tubular, Tall Upper Ball Joints, Black, Steel, Pair

Part Number: UPI-403133-1-B

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

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UMI Performance Complete Front End Kit 403133-R

A-Arms, Front Lower, Front Upper, Tubular, Red Powdercoated, Steel, Pair

Part Number: UPI-403133-R

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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UMI Performance Complete Front End Kit 403233-1-B

Control Arms, Tubular, Steel, Black, Front Upper/Lower, 1/2 in. Taller Ball Joints GM, A-Body, Kit

Part Number: UPI-403233-1-B

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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UMI Performance Front Non-Adjustable Upper A-Arms with Tall Ball Joints 4033-1-B

Control Arms, Tubular, Steel, Black, Front Upper, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4033-1-B

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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UMI Performance Rear Adjustable Lower Control Arms 4014-B

Control Arms, Tubular, Rear, Lower, Steel, Black Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Pair

Part Number: UPI-4014-B

4.33 out of 5 stars ( 9 )

Estimated Ship Date: Today

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UMI Performance Rear Non-Adjustable Lower Control Arms 4042-B

Control Arms, Boxed, Rear Lower, Steel, Black Powdercoated, GM A-Body, Kit

Part Number: UPI-4042-B

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

UMI Performance Rear Double Adjustable Lower Control Arms 4027-B

Control Arms, Tubular, Rear, Lower, Steel, Black Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Pair

Part Number: UPI-4027-B

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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UMI Performance Rear Non-Adjustable Lower Control Arms 4021-R

Control Arms, Tubular/Boxed, Rear, Lower, Steel, Red Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Kit

Part Number: UPI-4021-R

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

UMI Performance Rear Non-Adjustable Lower Control Arms 4015-R

Control Arms, Tubular, Rear, Lower, Steel, Red Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Kit

Part Number: UPI-4015-R

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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